{% extends "base.html" %} {% block main %}
<div class="container">
  <div class="row">
    <div class="col-md-12">
      <div class="panel panel-default">
        <div class="panel-heading">
          <h3 class="panel-title">
            <span class="glyphicon glyphicon-user"></span> 请登录
          </h3>
        </div>
        <div class="panel-body">
          <button type="submit" class="btn btn-primary">查询数据</button>
        </div>
      </div>
    </div>
  </div>
</div>
{% endblock %}
